# MGT555: The Coordinator Department of Business Economics wanted to investigate the improvement of students’ grades: Business Analytics Assignment, UiTM, Malaysia

School

###### Universiti Teknologi MARA (UiTM)

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Assignment Type

Subject

Date

###### 21/07/2023

QUESTION 1

The Coordinator Department of Business Economics wanted to investigate the improvement of students’ grades in the final exam for a subject after attending Score A courses. Using the Student’s Grades data in an Excel file apply critical value and p-value approaches to

• State the suitable procedure for hypothesis testing
• Construct hypothesis testing for this analysis
• Analysis of the hypothesis, making the decision, and stating the conclusion

QUESTION 2

A company wanted to investigate travel expenses for the year 2020. However, one of the sales representatives, Crawford says that travel expenses for Crawford is less than another sales representative, Smith. Therefore, the manager would like to investigate whether the average expenses for Crawford are more than Smith’s. By using Travel Expenses data in Excel.

• State the suitable procedure for hypothesis testing
• Assist the sales manager in determining the type of hypothesis analysis to be employed.
• Run the hypothesis. By using a 0.05 significance level, interpret the results using the critical value and p-value approaches.

QUESTION 3

A group of business studies students is conducting a study to determine the factors affecting employee salary in UiTM Machang. By using the Employee Salary Data, note that the dependent variable is ‘salary’ and other variables are independent variables. Based on the dataset provided, given α= 0.05, answer the following questions:

• Write and interpret the regression model (equation).
• Briefly explain R square
• Construct Analysis of Variance (ANOVA) hypothesis@ F test and interpret the result
• Construct hypothesis testing for ALL the independent variables and interpret independent sample t-test results
• Use the standard residuals to determine if any outlier exists.

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